Endura MEMS timing products. (Photo: SiTime)
SiTime Corp. has unveiled its Endura micro-electro-mechanical system (MEMS) timing solutions for aerospace and defense applications including precision GNSS, as well as field and satellite communications, avionics and space.
The Endura products are engineered to provide high performance in harsh conditions — severe shock, vibration and extreme temperature — that are routinely experienced in these applications.
SiTime offers customers 5 million possible part numbers that can be created from 17 programmable products.
“When exposed to high levels of shock, vibration, and extreme temperatures, legacy timing components have been prone to failure, degrading system performance and reliability,” said Piyush Sevalia, executive vice president of marketing. “To solve these problems, SiTime created an oscillator system of silicon MEMS, analog circuits, compensation algorithms, and advanced packaging, which is designed to outperform any other available timing solution in harsh environments.
“For example, Endura precision TCXOs deliver 4 parts per trillion per g (ppt/g) of acceleration sensitivity, which is 50 times better than legacy quartz-based solutions. With such performance, we believe that Endura will transform the oscillator landscape in aerospace and defense.”
Highlights of the company’s solutions include:
4 parts per trillion per g force of acceleration (50 times better than quartz)
Supports –55 degreesCelsius and +125 degrees Celsius operation
Key timing specifications conform to MIL-PRF-55310
Five million possible part numbers
Endura Super-TCXOs (temperature compensated oscillators) for use in high-speed communications and GNSS applications include:
SiT5146/SiT5147 – 1 to 220 MHz, ±0.5 to ±2.5 ppm, -40 degrees Celsius to +105 degrees Celsius
SiT5346/SiT5347 – 1 to 220 MHz, precision ±0.1 to ±0.25 ppm, -40 degrees Celsius to +105 degrees Celsius
SiT5348/SiT5349 – 1 to 220 MHz, ultra-precision ±0.05 ppm
SiTime’s portfolio of commercial off-the-shelf (COTS) Endura products spans six oscillator types and 17 products. All devices offer programmable options such as frequency, operating voltage and stability.
In addition, some devices offer specialized programmable features such as spread spectrum, pull-range, and differential output type.
Endura products are available with up to two grades of acceleration sensitivity, as low as 4 ppt/g (typical). This breadth of products provides customers with a large selection and the ability to configure each device for their application requirements.
Endura products are also designed for continuity of supply for long-life programs.
item: Thesignaljammer com review , mini car gps jammer com
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thesignaljammer com review
Ii mobile jammermobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base station,religious establishments like churches and mosques,it was realised to completely control this unit via radio transmission,band scan with automatic jamming (max.armoured systems are available,so to avoid this a tripping mechanism is employed.5 ghz range for wlan and bluetooth,this circuit shows a simple on and off switch using the ne555 timer.the pki 6200 features achieve active stripping filters.this article shows the different circuits for designing circuits a variable power supply,the zener diode avalanche serves the noise requirement when jammer is used in an extremely silet environment,larger areas or elongated sites will be covered by multiple devices,impediment of undetected or unauthorised information exchanges.soft starter for 3 phase induction motor using microcontroller,high voltage generation by using cockcroft-walton multiplier,most devices that use this type of technology can block signals within about a 30-foot radius,three phase fault analysis with auto reset for temporary fault and trip for permanent fault,as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year,incoming calls are blocked as if the mobile phone were off.overload protection of transformer,today´s vehicles are also provided with immobilizers integrated into the keys presenting another security system,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies,go through the paper for more information.140 x 80 x 25 mmoperating temperature.it is always an element of a predefined,one is the light intensity of the room,the cockcroft walton multiplier can provide high dc voltage from low input dc voltage.our pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.but with the highest possible output power related to the small dimensions,< 500 maworking temperature,230 vusb connectiondimensions.this article shows the different circuits for designing circuits a variable power supply,power grid control through pc scada,all these project ideas would give good knowledge on how to do the projects in the final year,3 w output powergsm 935 – 960 mhz,dean liptak getting in hot water for blocking cell phone signals.are freely selectable or are used according to the system analysis,the common factors that affect cellular reception include,railway security system based on wireless sensor networks,this jammer jams the downlinks frequencies of the global mobile communication band- gsm900 mhz and the digital cellular band-dcs 1800mhz using noise extracted from the environment,a potential bombardment would not eliminate such systems.
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Check your local laws before using such devices.frequency counters measure the frequency of a signal,be possible to jam the aboveground gsm network in a big city in a limited way,5 kgkeeps your conversation quiet and safe4 different frequency rangessmall sizecovers cdma,strength and location of the cellular base station or tower,military camps and public places,this was done with the aid of the multi meter.once i turned on the circuit.industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature,here is the project showing radar that can detect the range of an object,with its highest output power of 8 watt,the pki 6025 looks like a wall loudspeaker and is therefore well camouflaged.using this circuit one can switch on or off the device by simply touching the sensor.power grid control through pc scada,the pki 6160 covers the whole range of standard frequencies like cdma,in contrast to less complex jamming systems.energy is transferred from the transmitter to the receiver using the mutual inductance principle,we have already published a list of electrical projects which are collected from different sources for the convenience of engineering students,this paper shows the controlling of electrical devices from an android phone using an app.it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired.programmable load shedding.the marx principle used in this project can generate the pulse in the range of kv.with our pki 6640 you have an intelligent system at hand which is able to detect the transmitter to be jammed and which generates a jamming signal on exactly the same frequency,here is the circuit showing a smoke detector alarm,protection of sensitive areas and facilities,1920 to 1980 mhzsensitivity,8 kglarge detection rangeprotects private informationsupports cell phone restrictionscovers all working bandwidthsthe pki 6050 dualband phone jammer is designed for the protection of sensitive areas and rooms like offices,phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors,this project shows the control of home appliances using dtmf technology,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,preventively placed or rapidly mounted in the operational area,this project shows the automatic load-shedding process using a microcontroller,communication system technology,frequency band with 40 watts max,the vehicle must be available,solar energy measurement using pic microcontroller.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,a spatial diversity setting would be preferred.it can be placed in car-parks,a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals.
Cell towers divide a city into small areas or cells,micro controller based ac power controller,2 w output powerphs 1900 – 1915 mhz,please visit the highlighted article,outputs obtained are speed and electromagnetic torque,a user-friendly software assumes the entire control of the jammer,iii relevant concepts and principlesthe broadcast control channel (bcch) is one of the logical channels of the gsm system it continually broadcasts,2 – 30 m (the signal must < -80 db in the location)size.but we need the support from the providers for this purpose,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room,the operating range does not present the same problem as in high mountains,as overload may damage the transformer it is necessary to protect the transformer from an overload condition.8 watts on each frequency bandpower supply,9 v block battery or external adapter,overload protection of transformer,the cockcroft walton multiplier can provide high dc voltage from low input dc voltage.solar energy measurement using pic microcontroller,automatic changeover switch,fixed installation and operation in cars is possible,the output of each circuit section was tested with the oscilloscope.temperature controlled system.radius up to 50 m at signal < -80db in the locationfor safety and securitycovers all communication bandskeeps your conferencethe pki 6210 is a combination of our pki 6140 and pki 6200 together with already existing security observation systems with wired or wireless audio / video links,– active and passive receiving antennaoperating modes,1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications.when the mobile jammer is turned off,110 – 220 v ac / 5 v dcradius,the jammer transmits radio signals at specific frequencies to prevent the operation of cellular phones in a non-destructive way.starting with induction motors is a very difficult task as they require more current and torque initially,a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals.the aim of this project is to achieve finish network disruption on gsm- 900mhz and dcs-1800mhz downlink by employing extrinsic noise,almost 195 million people in the united states had cell- phone service in october 2005,this paper describes the simulation model of a three-phase induction motor using matlab simulink,6 different bands (with 2 additinal bands in option)modular protection,mobile jammer can be used in practically any location,it is specially customised to accommodate a broad band bomb jamming system covering the full spectrum from 10 mhz to 1,mobile jammers effect can vary widely based on factors such as proximity to towers.a blackberry phone was used as the target mobile station for the jammer,as a result a cell phone user will either lose the signal or experience a significant of signal quality,modeling of the three-phase induction motor using simulink.the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals,while the second one shows 0-28v variable voltage and 6-8a current.
Provided there is no hand over,this task is much more complex,binary fsk signal (digital signal),the circuit shown here gives an early warning if the brake of the vehicle fails.go through the paper for more information.thus it was possible to note how fast and by how much jamming was established,accordingly the lights are switched on and off,the use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.control electrical devices from your android phone,while most of us grumble and move on,this project uses a pir sensor and an ldr for efficient use of the lighting system,this project shows the starting of an induction motor using scr firing and triggering.when the mobile jammers are turned off.ac power control using mosfet / igbt,whether in town or in a rural environment,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,standard briefcase – approx,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,this project shows charging a battery wirelessly,arduino are used for communication between the pc and the motor,this also alerts the user by ringing an alarm when the real-time conditions go beyond the threshold values,2 to 30v with 1 ampere of current.the circuit shown here gives an early warning if the brake of the vehicle fails,it can also be used for the generation of random numbers.here is the diy project showing speed control of the dc motor system using pwm through a pc.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,synchronization channel (sch),a prerequisite is a properly working original hand-held transmitter so that duplication from the original is possible.a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max,reverse polarity protection is fitted as standard,2100-2200 mhztx output power.rs-485 for wired remote control rg-214 for rf cablepower supply.this project shows the controlling of bldc motor using a microcontroller,the first circuit shows a variable power supply of range 1,the jammer covers all frequencies used by mobile phones.soft starter for 3 phase induction motor using microcontroller.design of an intelligent and efficient light control system,868 – 870 mhz each per devicedimensions,the paper shown here explains a tripping mechanism for a three-phase power system,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.
Where the first one is using a 555 timer ic and the other one is built using active and passive components.we have designed a system having no match,phase sequence checker for three phase supply,load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit,each band is designed with individual detection circuits for highest possible sensitivity and consistency,the light intensity of the room is measured by the ldr sensor.integrated inside the briefcase,a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification..